implement move_backward and turn_left

1 files changed, 55 insertions, 1 deletions

diff --git a/src/simulation/actions.test.js b/src/simulation/actions.test.js
index a870352..457015d 100644
--- a/src/simulation/actions.test.js
+++ b/src/simulation/actions.test.js
@@ -3,7 +3,7 @@
 import { actions } from './actions.js';
 
 
-const [move_forward, ...rest] = actions;
+const [move_forward, move_backward, turn_left, ...rest] = actions;
 
 
 test("move forward", () => {
@@ -30,3 +30,57 @@ test("move forward", () => {
   expect(move_forward.propose(e, [0])).toEqual([]);
   expect(move_forward.propose(w, [-1])).toEqual([]);
 });
+
+
+test("move backward", () => {
+  const n = { id: 0, x: 0, y: 0, flags: { orientation: 'n' } };
+  const s = { id: 0, x: 0, y: 0, flags: { orientation: 's' } };
+  const e = { id: 0, x: 0, y: 0, flags: { orientation: 'e' } };
+  const w = { id: 0, x: 0, y: 0, flags: { orientation: 'w' } };
+
+  expect(move_backward.propose(n, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, x: 0, y: 1 }] },
+  ]);
+  expect(move_backward.propose(s, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, x: 0, y: -1 }] },
+  ]);
+  expect(move_backward.propose(e, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, x: -1, y: 0 }] },
+  ]);
+  expect(move_backward.propose(w, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, x: 1, y: 0 }] },
+  ]);
+
+  expect(move_backward.propose(n, [0])).toEqual([]);
+  expect(move_backward.propose(s, [-1])).toEqual([]);
+  expect(move_backward.propose(e, [0])).toEqual([]);
+  expect(move_backward.propose(w, [-1])).toEqual([]);
+});
+
+
+test("turn_left", () => {
+  const n = { id: 0, x: 0, y: 0, flags: { orientation: 'n' } };
+  const s = { id: 0, x: 0, y: 0, flags: { orientation: 's' } };
+  const e = { id: 0, x: 0, y: 0, flags: { orientation: 'e' } };
+  const w = { id: 0, x: 0, y: 0, flags: { orientation: 'w' } };
+
+  expect(turn_left.propose(n, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, flags: { orientation: 'w' } }] },
+  ]);
+  expect(turn_left.propose(s, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, flags: { orientation: 'e' } }] },
+  ]);
+  expect(turn_left.propose(e, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, flags: { orientation: 'n' } }] },
+  ]);
+  expect(turn_left.propose(w, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, flags: { orientation: 's' } }] },
+  ]);
+
+  expect(turn_left.propose(n, [0])).toEqual([]);
+  expect(turn_left.propose(s, [-1])).toEqual([]);
+  expect(turn_left.propose(e, [0])).toEqual([]);
+  expect(turn_left.propose(w, [-1])).toEqual([]);
+});
+
+